Well, if the plate connects the heel to the toe pieces, then take it off. But if its just a small 2mm piece of plastic under EACH piece, let it on, itll make a better mount, and an overall better ride. (theyll dampen vibration)

And They Say There's A Marajuana Problem!... There's No Problem, Everyone Has It...

Exactly, 1 or 2 mm of rise is integrated into the binding, it really won't effect anything at all, except enhance all-mountain performance slightly. When there are 5 mm riser plates for racing between ski and binding, then you've got a problem.
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Formerly SwitchPollard

ok i noticed that the rear piece of the binding has like 4 mm just form the axial system but the fron isnt lifted.. this is gonna result in my boot being at a downhill angle.. wtf can i do? will it affect performance??

well, putting pressure on the front of your boot is something racing coachs bitch at you about forever. It helps stance and carving, easier on your body and such. I have no energy to type more, but there's nothing wrong with it.

i have the similiar rossi bindings (power 100?) and they came with the lifter, the shop had to order in a really thin plate for the heel...but they could mount the toe flush. That little metal piece is only 10-0 bucks i think.